A202557 Number of nX5 0,1 arrays with the row and column sums nondecreasing

6, 73, 824, 9325, 103806, 1126437, 12176148, 130217215, 1384437590, 14638759530, 153859811582, 1612968122563, 16850540584514, 175613681682972, 1826081927556004, 18940152569016323, 196169872012941802

Offset

1,1

Comments

Column 5 of A202560

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

Some solutions for n=4
..0..0..0..1..1....0..0..0..0..1....0..0..0..1..1....0..0..0..1..1
..1..1..0..0..0....0..1..1..0..0....1..0..0..1..1....0..1..0..1..1
..0..1..1..0..0....1..0..0..0..1....1..1..1..0..0....1..0..1..1..0
..1..0..1..1..1....0..0..0..1..1....0..1..1..1..1....1..1..1..0..1

Crossrefs

Sequence in context: A041063 A105324 A179568 * A041060 A089926 A372251

Adjacent sequences: A202554 A202555 A202556 * A202558 A202559 A202560

Keyword

nonn

Author

R. H. Hardin Dec 21 2011

Status

approved